Backup wrench
The benefit of and the practical side of the improvement, by adding the retaining shoulder to the jaws of the wrench on the box-end and the open-end parts of the wrench, is the decline of slippage and limited loss of control of the tightening or removal procedure, producing an ease of maintaining one's position on the bolt or nut when the vibration of an impact wrench is incorporated or manual procedures, no matter how precarious the position or how open the position is to the mechanic, technician, or untrained shop help. This Backup Wrench does not allow the nut or bolt to skip through the jaws of the wrench whether on open-end or box-end as it has a built-in stop. The stop holds the nut but alls the bolt to protrude without affecting the Backup Wrench's position. Sizes range from ¼″ on up to any size desired—American or Metric.
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BACKGROUND OF THE INVENTIONThis invention targets the field of mechanics, assembly lines and any place where impact wrenches are used to tighten and loosen bolt and nut applications as an on-going process of production and maintenance.
The subject matter would be “Mechanics”, “Maintenance”, “Assembly Line”.
BRIEF SUMMARY OF THE INVENTIONThe main idea is to simplify the operation of one man operating an impact wrench with a back up wrench that does not easily slip off the nut while tightening the bolt to the desired torque. While not totally eliminating human error or slippage, this wrench is a great asset in the desired setting to improve productivity and ease of application. There is greater jaw strength in both open-end and box-end design by virtue of geometric design.
This idea was developed in a ‘rig-up’ truck shop where frame bolts had to be removed and replaced by one man in tight places. This type of wrench would be welcomed in any shop.
The focus of this description is the new and improved part of the basic wrench design to include a retainer shoulder to aid in the prevention of slippage of the wrench when an impact wrench is applied to the bolt for torqueing to the desired pressure. This retainer shoulder is evident in all views of the five drawings and is included in the forging of the wrench in the manufacturing of the wrench. There is increased jaw strength by virtue of geometric design.
Claims
1. Jonathan Douglas Bauman, claim this invention, the Backup Wrench., has a built-in shoulder on both ends of the wrench, “box-end” and “open-end”, to aid in the mechanic's ability to maintain control of the nut as an impact is applied to torque bolt to the desired torque and not losing position as the vibration is intensified through the tightening process. There is also increased jaw strength by virtue of design geometrics.
Type: Application
Filed: Dec 26, 2007
Publication Date: Jul 2, 2009
Applicant: (Odessa, TX)
Inventor: Jonathan Douglas Bauman (Odessa, TX)
Application Number: 11/975,111